Create an instance each of both snippet types

tests/test_grapple.py

@@ -10,7 +10,7 @@
 from django.db import connection
 from django.test import RequestFactory, TestCase, override_settings
 from graphene.test import Client
-from testapp.factories import AdvertFactory, BlogPageFactory
+from testapp.factories import AdvertFactory, BlogPageFactory, PersonFactory
 from testapp.models import GlobalSocialMediaSettings, HomePage, SocialMediaSettings
 from wagtail.documents import get_document_model
 from wagtail.models import Page, Site
@@ -1587,8 +1587,14 @@ def setUp(self):
         super().setUp()
         self.factory = RequestFactory()
         self.advert = AdvertFactory()
+        self.person = PersonFactory()
 
     def test_snippets(self):
+        """
+        Query for snippets of different types, they should all be returned in
+        the same response.
+        """
+
         query = """
         {
             snippets {
@@ -1602,11 +1608,16 @@ def test_snippets(self):
 
         self.assertEqual(type(executed["data"]), dict)
         self.assertEqual(type(executed["data"]["snippets"]), list)
+        self.assertEqual(len(executed["data"]["snippets"]), 2)
         self.assertEqual(type(executed["data"]["snippets"][0]), dict)
 
-        snippets_data = executed["data"]["snippets"]
+        snippets_data = sorted(
+            executed["data"]["snippets"], key=lambda s: s["snippetType"]
+        )
         self.assertEqual(snippets_data[0]["snippetType"], "Advert")
         self.assertEqual(snippets_data[0]["contentType"], "testapp.Advert")
+        self.assertEqual(snippets_data[1]["snippetType"], "Person")
+        self.assertEqual(snippets_data[1]["contentType"], "testapp.Person")
 
     def test_no_snippet_classes_registered(self):
         """